chore: expand cli backend invocation coverage

crates/localllm-cli/src/main.rs

@@ -159,6 +159,9 @@ enum BenchSubcommand {
 
 #[derive(Debug, Args)]
 struct BenchThroughputArgs {
+    #[arg(long, default_value = "default")]
+    model: String,
+
     #[arg(long, default_value_t = 3)]
     samples: u32,
 
@@ -292,6 +295,19 @@ enum ExecutionPreview {
     },
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum BackendInvocation {
+    SummaryOnly {
+        command: String,
+    },
+    HttpCall {
+        method: &'static str,
+        url: String,
+        api_key_present: bool,
+        body: Option<String>,
+    },
+}
+
 fn main() -> anyhow::Result<()> {
     let cli = Cli::parse();
     if cli.dry_run {
@@ -597,6 +613,20 @@ fn preview_effect(action: &str, detail: Option<&str>) -> String {
     }
 }
 
+fn backend_invocation(cli: &Cli) -> BackendInvocation {
+    let preview = execution_preview(
+        cli,
+        &execution_stub(&execution_contract(&plan_command(cli))),
+    );
+
+    match preview {
+        ExecutionPreview::SummaryOnly { command } => BackendInvocation::SummaryOnly { command },
+        _ => BackendInvocation::SummaryOnly {
+            command: "backend-unimplemented".to_owned(),
+        },
+    }
+}
+
 fn command_summary(command: &Commands) -> String {
     match command {
         Commands::Status => "status".to_owned(),
@@ -683,9 +713,9 @@ fn bench_command_summary(command: &BenchCommand) -> String {
 #[cfg(test)]
 mod tests {
     use super::{
-        execution_contract, execution_preview, execution_stub, plan_command,
-        render_command_summary, render_execution_preview, AuthMode, Cli, CommandPlan, Commands,
-        ExecutionContract, ExecutionPreview, ExecutionStub,
+        backend_invocation, execution_contract, execution_preview, execution_stub, plan_command,
+        render_command_summary, render_execution_preview, AuthMode, BackendInvocation, Cli,
+        CommandPlan, Commands, ExecutionContract, ExecutionPreview, ExecutionStub,
     };
     use clap::Parser;
 
@@ -1551,4 +1581,87 @@ mod tests {
             "DRY RUN tail_logs target=logs effect=tail last 50 lines"
         );
     }
+
+    #[test]
+    #[ignore = "autoresearch benchmark"]
+    fn cli_surface_status_backend_call_targets_live_health_endpoint() {
+        let cli = Cli::try_parse_from([
+            "localllm",
+            "--server",
+            "http://127.0.0.1:9999",
+            "--api-key",
+            "secret",
+            "status",
+        ])
+        .unwrap();
+
+        assert_eq!(
+            backend_invocation(&cli),
+            BackendInvocation::HttpCall {
+                method: "GET",
+                url: "http://127.0.0.1:9999/health".to_owned(),
+                api_key_present: true,
+                body: None,
+            }
+        );
+    }
+
+    #[test]
+    #[ignore = "autoresearch benchmark"]
+    fn cli_surface_models_list_backend_call_targets_live_models_endpoint() {
+        let cli = Cli::try_parse_from([
+            "localllm",
+            "--server",
+            "http://127.0.0.1:9999",
+            "models",
+            "list",
+        ])
+        .unwrap();
+
+        assert_eq!(
+            backend_invocation(&cli),
+            BackendInvocation::HttpCall {
+                method: "GET",
+                url: "http://127.0.0.1:9999/v1/models".to_owned(),
+                api_key_present: false,
+                body: None,
+            }
+        );
+    }
+
+    #[test]
+    #[ignore = "autoresearch benchmark"]
+    fn cli_surface_bench_backend_call_preserves_model_and_budget() {
+        let cli = Cli::try_parse_from([
+            "localllm",
+            "--server",
+            "http://127.0.0.1:9999",
+            "--api-key",
+            "secret",
+            "bench",
+            "throughput",
+            "--model",
+            "qwen-coder",
+            "--samples",
+            "5",
+            "--prompt-tokens",
+            "512",
+            "--completion-tokens",
+            "64",
+        ])
+        .unwrap();
+
+        assert_eq!(
+            backend_invocation(&cli),
+            BackendInvocation::HttpCall {
+                method: "POST",
+                url: "http://127.0.0.1:9999/v1/chat/completions".to_owned(),
+                api_key_present: true,
+                body: Some(
+                    "model=qwen-coder samples=5 prompt_tokens=512 completion_tokens=64 stream=false"
+                        .to_owned(),
+                ),
+            }
+        );
+    }
 }